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How To Get Bugzilla

By far best way to get, maintain and upgrade Bugzilla is as a checkout
from the appropriate branch of our source code control system. This
is true of both stable and development versions. Instructions on how to
do this are in the
Installation
and Maintenance Guide. That document also explains how to upgrade
Bugzilla to a new version, move a Bugzilla installation between machines,
and migrate from other bug-tracking systems.

If you are installing a new Bugzilla, the latest stable release series (and
so the one you should choose unless you have a good reason for doing
otherwise) is the 5.0 series. You will need
this information when following the installation instructions.

If you are upgrading, note that you can upgrade directly from any
old Bugzilla version to any new release—you do not have to go via
the releases in between. You should upgrade to the latest stable series,
5.0, and read the
Release
Notes. If you want to know exactly what's changed from one version to
the next, you can view checkin logs.

Bugzilla Addons

For a list of programs that can enhance and interact with Bugzilla in
various ways, see our
Addons list.

Localized Versions

Bugzilla uses a template system and those templates can be translated into
other languages. This is a list of currently-known localizations of the Bugzilla UI. These
are third-party contributions, so if you need help with any of them, please contact
the maintainer of the particular localization.

If you have additions or corrections for this list, please contact the
Bugzilla l10n team.

If your language is not listed here, do not give up. Look at the
list of all known localization efforts.
Listed there are works in progress, older releases for unsupported Bugzilla versions,
and orphaned projects. We don't advise using unsupported releases, but it may be a good
place to start if you want to bring a localization up to date.